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Contracts Receivable Including Retainage, net (Tables)
3 Months Ended
Dec. 31, 2019
Contractors [Abstract]  
Schedule of Contracts Receivable Including Retainage, Net
Contracts receivable including retainage, net consisted of the following at December 31, 2019 and September 30, 2019 (in thousands):
December 31, 2019September 30, 2019
(unaudited)
Contracts receivable$99,095  $121,050  
Retainage20,587  19,835  
119,682  140,885  
Allowance for doubtful accounts(1,134) (1,003) 
Contracts receivable including retainage, net$118,548  $139,882